Buick 2006 LaCrosse - Manual (Page 150)

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(Recirculation): Press this button to turn
recirculation mode on or off. This mode keeps outside
air from coming into the vehicle. It can be used to
prevent outside air and odors from entering your vehicle
or to help cool the air inside the vehicle more quickly.
Recirculation is not available while in the floor, defrost,
or floor/defog modes. Using recirculation for long
periods of time may cause the air inside your vehicle
to become too dry. Recirculation mode has a 5 minute
timer after which the system allows for some fresh
outside air into the vehicle to maintain interior air quality.
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(Air Conditioning): Press this button to turn the
air conditioning compressor on and off. The indicator
light on the button will come on when the air conditioning
is on. Note that the indicator light will change with
each button press even when conditions prevent
operation. The indicator light on the air conditioning
button will come on every time the vehicle is started.
The air conditioning may be turned off by pressing
the air conditioner button.
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(Heated Seats): Press this button to turn the driver
or passenger heated seats on and off. See Heated
Seats on page 1-4 for additional information.
Defogging and Defrosting
Fog on the inside of windows is a result of high humidity
(moisture) condensing on the cool window glass.
This can be minimized if the climate control system is
used properly. There are two modes to clear fog or
frost from your windshield. Use the floor/defog mode to
clear the windows of fog or moisture and warm the
passengers. Use defrost to remove fog or frost from
the windshield more quickly.
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(Floor/Defog): Press this button to direct the air
between the windshield, floor outlets and side windows.
When you select this mode, the system turns recirculation
off and runs the air conditioning compressor unless the
outside temperature is near or below freezing. Pressing
the recirculation button will have no effect other than
turning on the indicator light while in floor/defog mode.
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(Defrost): Press this button to direct most of the air
to the windshield, with some air directed to the side
windows. In this mode, the system will automatically turn
off the recirculation and run the air conditioning
compressor, unless the outside temperature is near or
below freezing. Pressing the recirculation button will
have no effect other than turning on the indicator light
while in defrost mode.
Do not drive the vehicle until all windows are clear.
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